using Azure.Core;
using Dapper;
using Magicodes.ExporterAndImporter.Core.Extension;
using Magicodes.ExporterAndImporter.Excel;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.HttpResults;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Omu.ValueInjecter;
using SkiaSharp;
using System.Data;
using System.Drawing.Printing;
using System.Globalization;
using System.Linq.Expressions;
using System.Security.Policy;
using System.Text;
using System.Text.Json;
using System.Text.Json.Serialization;
using TaskManager.Contracts.Dtos;
using TaskManager.Entity;
using TaskManager.EntityFramework;
using TaskManager.EntityFramework.Repository;
using Wood.Service;
using Wood.Util;
using Wood.Util.Filters;
using static Dapper.SqlMapper;

namespace TaskManager.Controllers
{
    public class CheryRecurringJobInputPageController<T,TDTO> : RecurringJobBaseController 
        where T  : BaseEntity ,new()
        where TDTO:class,new()
    {
        protected readonly IRepository<T> _repository;
        public CheryRecurringJobInputPageController(HttpClient httpClient, JobDbContext jobDbContext, LogController log, IRepository<T> repository) : base(httpClient, jobDbContext, log)
        {
            _repository = repository;
        }







        /// <summary>
        /// 手工发送调用接口
        /// </summary>
        /// <param name="taskName">任务名称</param>
        /// <param name="inputdate">请求日期</param>
        /// <param name="client">客户(Chery)</param>
        /// <returns></returns>
        [HttpGet]
        public virtual async Task CustomInvokeAsync(string taskName, string client)
        {
            var first = _jobDbContext.TaskConifgure.FirstOrDefault(p => p.TaskName == taskName && p.Client == client);
            if (first == null)
            {
               
                return;
            }
            Url = first.Url;
            Path = first.Api;
            TaskName = first.TaskName;
            Client = client;
            CPageSize = first.PageSize;
            await SyncTaskSubTable(TaskName, Client);
        }


        protected override async Task DoExecutingAsync(string url, string path, string takName, string client, int pagesize)
        {
            Url = url;
            Path = path;
            TaskName = takName;
            Client = client;
            CPageSize = pagesize;
            await SyncTaskSubTable(TaskName,Client);

        }
        private async Task<QRReturnInfo> PostPageAsync(PagedRequest<TDTO> t,Guid taskId,string version)
        {
            try
            {
                var inputjson = JsonSerializer.Serialize(t,
                   new JsonSerializerOptions
                   {
                       PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
                       Converters = { new DecimalTrimConverter() },
                       WriteIndented = false // 可选，用于格式化输出
                   }
                   );
                //inputjson = RemoveWhitespace(inputjson);
                var content = await Post(Url, Path, inputjson,taskId,version);
                if (!string.IsNullOrEmpty(content))
                {

                    var options = new JsonSerializerOptions
                    {
                        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
                        Converters = {
                         new JsonStringEnumConverter(), // 枚举转换
                         new CustomDateTimeConverter("yyyy-MM-dd HH:mm:ss") // 日期转换
    }
                    };
                    return JsonSerializer.Deserialize<QRReturnInfo>(content, options);
                }
                else
                {
                    await _logger.AddError($"调用接口无返回值{Url}", TaskName,taskId,version);
                    return null;
                }
            }
            catch (Exception ex)
            {
                await _logger.AddError($"调用接口无返回值错误{ex.Message}", TaskName,taskId,version);
                return null;
            }

        }


        public static string GenerateRandomStringWith8EG()
        {
            const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
            var random = new Random();
            var sb = new StringBuilder(32);

            // 随机生成 "8EG" 的插入位置 (0-29)
            int position = random.Next(0, 30);

            // 生成前半部分随机字符串
            for (int i = 0; i < position; i++)
            {
                sb.Append(chars[random.Next(chars.Length)]);
            }

            // 插入 "8EG"
            sb.Append("8EG");

            // 生成后半部分随机字符串，补足32位
            int remainingLength = 32 - sb.Length;
            for (int i = 0; i < remainingLength; i++)
            {
                sb.Append(chars[random.Next(chars.Length)]);
            }

            return sb.ToString();
        }


        private async Task SyncTaskSubTable(string taskName, string client)
        {
           



            if (string.IsNullOrEmpty(taskName) || string.IsNullOrEmpty(client))
            {
                await _logger.AddError("任务名称或客户端不能为空",taskName,Guid.NewGuid(),DateTime.Now.ToString("yyyyMMdd"));
                return;
            }
            var sublist = _jobDbContext.TaskSub.Where(p => taskName.Contains(p.TaskName)  && p.WriteState == false && p.Subscriber == client ).ToList();
            int pageSize = CPageSize; 
            if (sublist.Any())
            {
                foreach (var sub in sublist)
                {
                  
                    string querystr = $"select * from {sub.TableName} where TaskId='{sub.TaskId}' and WriteState=0 and ReadState=1 order by uid";//任务表

                    var entites = _jobDbContext.Database.GetDbConnection().Query<T>(querystr);//明细表
                    if (entites.Any())
                    {
                        var total = entites.Count();
                        sub.DataCount = total;
                        int totalPages = (int)Math.Ceiling((double)total / pageSize);
                
                        for (int i =  sub.SyncedPageCount; i <= totalPages; i++)
                        {

                            var records = entites.Skip((i - 1) * pageSize)
                    .Take(pageSize).ToList();
                            #region dto转换作为参数发给客户API 因为实体比DTO字段多
                            List<TDTO> dtos = new List<TDTO>();
                            foreach (var itm in records)
                            {
                                TDTO dto = new TDTO();
                                dto.InjectFrom(itm);
                                dtos.Add(dto);
                            }
                            PagedRequest<TDTO> pagedRequest = new PagedRequest<TDTO>()
                            {
                                batchNo = GenerateRandomStringWith8EG(),
                                total = entites.Count(),
                                pageSize = pageSize,
                                list = dtos,
                                pageNum = i
                            };
                            #endregion
                            foreach (var itm in records)
                            {
                                itm.WriteState = true;
                            }
                            var result = await PostPageAsync(pagedRequest,sub.TaskId, DateTime.Now.ToString("yyyyMMdd"));
                            if(result.code == 200)
                            {
                                
                                _jobDbContext.BulkUpdate(records);
                                sub.SyncedPageCount = i;
                                if (i == totalPages)
                                {
                                   
                                    sub.WriteState = true;
                                    _jobDbContext.Set<TaskSub>().Update(sub);
                                    _jobDbContext.SaveChanges();
                                }
                            }                            
                            else
                            {
                                sub.FailedCount = i*pageSize;

                                await _logger.AddError($"第 {i} 页奇瑞数据保存失败 {result.message}。", TaskName,sub.TaskId, DateTime.Now.ToString("yyyyMMdd"));
                            }
                        }

                    }

                }
            }

        }
      
        [HttpGet]
        public async Task<ActionResult<IEnumerable<T>>> GetAll()
        {
            return await _repository.GetAllAsync() as List<T>;
        }

        [HttpGet("{id}")]
        public async Task<ActionResult<T>> GetById(int id)
        {
            var entity = await _repository.GetByIdAsync(id);
            if (entity == null) return NotFound();
            return entity;
        }

        [HttpPost]
        public async Task<ActionResult<T>> Create(T entity)
        {
            entity.CreationTime = DateTime.Now;
            var createdEntity = await _repository.AddAsync(entity);
            return new JsonResult(new { Code = 200, Message = "创建成功!" }); ;
        }

        [HttpPut("{id}")]
        public async Task<IActionResult> Update(T entity)
        {
            if (entity.UId == 0)
            {
                throw new Exception("更新时，实体主键UId不能为空或0");
            }
            var target = await _repository.GetByIdAsync(entity.UId);
            if (target == null)
            {
                throw new Exception($"CheryRecurringJobInputPageController.Update报错：根据UId{entity.UId}没有找到记录");
                return new JsonResult(new { Code = 400, Message = "修改失败!" });
            }
            EntityMapper.Trans(entity, target, "UId");

            await _repository.UpdateAsync(target);
            return new JsonResult(new { Code = 200, Message = "修改成功!" });
        }

        [HttpDelete("{id}")]
        public async Task<IActionResult> Delete(int id)
        {
            await _repository.DeleteAsync(id);
            return new JsonResult(new { Code = 200, Message = "删除成功!" }); ;
        }
        //[HttpGet]
        //public async Task<ActionResult> GetPaged(
        //[FromQuery] int pageNumber = 1,
        //[FromQuery] int pageSize = 10,
        //[FromQuery] string sortBy = "",
        //[FromQuery] bool isAscending = true,
        //[FromQuery] Dictionary<string, string> filters = null)
        //{
        //    var pagingParams = new PagingParams
        //    {
        //        PageNumber = pageNumber,
        //        PageSize = pageSize,
        //        SortBy = sortBy,
        //        IsAscending = isAscending,
        //        Filters = filters
        //    };

        //    // 可以在这里构建表达式树过滤条件
        //    Expression<Func<T, bool>> filter = null;

        //    var pagedResult = await _repository.GetPagedAsync(filter, pagingParams);
        //    return Ok(pagedResult);
        //}

        /// <summary>
        /// 分页New
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost]
        public async Task<ActionResult<PagedResult<T>>> GetDataPaged(RequestInputBase input)
        {
            var pagingParams = new PagingParams
            {
                PageNumber = input.pageNumber,
                PageSize = input.pageSize,
                SortBy = input.sortBy,
                IsAscending = input.isAscending,
            };


            var json= JsonSerializer.Serialize(input);



            // 可以在这里构建表达式树过滤条件
            Expression<Func<T, bool>> filter = null;

            var pagedResult = await _repository.GetDataPagedAsync(filter, pagingParams, input.Condition);
            return Ok(pagedResult);
        }

        public async Task<PagedResult<T>> GetTaskDataPaged(RequestInputBase input)
        {
            var pagingParams = new PagingParams
            {
                PageNumber = input.pageNumber,
                PageSize = input.pageSize,
                SortBy = input.sortBy,
                IsAscending = input.isAscending,
            };


            var json = JsonSerializer.Serialize(input);



            // 可以在这里构建表达式树过滤条件
            Expression<Func<T, bool>> filter = null;

            var pagedResult = await _repository.GetDataPagedAsync(filter, pagingParams, input.Condition);
            return pagedResult;
        }

        /// <summary>
        /// 导出New
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost]
        public async Task<FileStreamResult> ExportData(RequestInputBase input)
        {
            var pagingParams = new PagingParams
            {
                PageNumber = input.pageNumber,
                PageSize = input.pageSize,
                SortBy = input.sortBy,
                IsAscending = input.isAscending,

            };

            // 可以在这里构建表达式树过滤条件
            //Expression<Func<T, bool>> filter = null;

            var pagedResult = await _repository.GetDataPagedAsync(null, pagingParams, input.Condition);
            return await ExportFile(pagedResult.Data, Guid.NewGuid().ToString() + ".xlsx");
        }

        //   [HttpGet]
        //   public async Task<FileStreamResult> Export([FromQuery] int pageNumber = 1,
        //[FromQuery] int pageSize = 10,
        //[FromQuery] string sortBy = "",
        //[FromQuery] bool isAscending = true,
        //[FromQuery] Dictionary<string, string> filters = null)
        //   {
        //       var pagingParams = new PagingParams
        //       {
        //           PageNumber = pageNumber,
        //           PageSize = pageSize,
        //           SortBy = sortBy,
        //           IsAscending = isAscending,
        //           Filters = filters
        //       };

        //       // 可以在这里构建表达式树过滤条件
        //       //Expression<Func<T, bool>> filter = null;

        //       var pagedResult = await _repository.GetPagedAsync(null, pagingParams);
        //       return await ExportFile(pagedResult.Data, Guid.NewGuid().ToString() + ".xlsx");


        //   }
        protected async Task<FileStreamResult> ExportFile(ICollection<T> dtos, string fileName)
        {
            var excelExporter = HttpContext.RequestServices.GetRequiredService<IExcelExporter>();
            var res = await excelExporter.ExportAsByteArray(dtos);
            return new FileStreamResult(new MemoryStream(res), "application/octet-stream") { FileDownloadName = DateTime.Now.ToString("yyyyMMddHHmm") + "_" + fileName };
        }

        [HttpGet]
        public async Task<IActionResult> GetImportTemplate()
        {
            try
            {
                // 创建导入模板生成器
                var importer = new ExcelImporter();

                // 生成导入模板流（这里假设使用 YourModel 作为导入模型）
                var bytes = await importer.GenerateTemplateBytes<T>();


                //using var stream = new MemoryStream(bytes);
                //stream.Seek(0, SeekOrigin.Begin);

                // 设置友好的文件名，例如："导入模板_20250530.xlsx"
                var fileName = $"导入模板_{DateTime.Now:yyyyMMdd}.xlsx";

                // 返回文件流结果

                return new FileStreamResult(new MemoryStream(bytes), "application/octet-stream") { FileDownloadName = DateTime.Now.ToString("yyyyMMddHHmm") + "_" + fileName };



                //return File(
                //    fileStream: stream,
                //    contentType: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
                //    fileDownloadName: fileName);
            }
            catch (Exception ex)
            {
                // 记录异常日志
                Console.WriteLine($"生成导入模板时出错: {ex.Message}");

                // 返回错误响应
                return StatusCode(500, "生成导入模板时发生错误");
            }
        }

        [HttpPost("Import")]
        public async virtual Task<IActionResult> Import(IFormFile file)
        {
            if (file == null || file.Length <= 0)
            {
                return NotFound("No file uploaded.");
            }
            try
            {
                var excelImporter = HttpContext.RequestServices.GetRequiredService<IExcelImporter>();
                var importResult = await excelImporter.Import<T>(file.OpenReadStream());
                if (importResult.HasError)
                {
                    StringBuilder sb = new StringBuilder();
                    foreach (var rowErr in importResult.RowErrors)
                    {
                        string temp = string.Join("；", rowErr.FieldErrors.Select(itm => $"第{rowErr.RowIndex}行：{itm.Key}-{itm.Value}"));
                        sb.AppendLine(temp);
                    }
                    foreach (var templateErr in importResult.TemplateErrors)
                    {
                        string temp = $"列名：{templateErr.RequireColumnName}，错误信息：{templateErr.Message}";
                        sb.AppendLine(temp);
                    }
                    throw new Exception(sb.ToString());
                }

                // 处理导入的数据
                List<T> list = importResult.Data.ToList();

                await ImportBefore(list);

                // 校验数据长度
                var validationErrors = ValidationHelper.ValidateDataLength(list, _jobDbContext);
                if (validationErrors.Any())
                {
                    throw new Exception("数据校验失败：" + string.Join(", ", validationErrors));
                }
                foreach (var item in list)
                {
                    item.ReadState = true;
                    item.CreationTime = CommonHelper.CurrentTime;
                }
                await _jobDbContext.BulkInsertAsync(list);

                await ImportAfter(list);

                return new JsonResult(new { Code = 200, Message = "修改成功!" });
            }
            catch (Exception ex)
            {
                //await _logger.AddError(ex.Message, TaskName);
                return new JsonResult(new { Code = 400, Message = "导入失败:" + ex.Message });
            }
        }

        /// <summary>
        /// 重写插入前进行操作,如校验等
        /// </summary>
        /// <param name="p_list"></param>
        /// <returns></returns>
        protected virtual async Task ImportBefore(List<T> p_list)
        {

        }

        /// <summary>
        /// 重写插入后进行操作如
        /// </summary>
        /// <param name="p_list"></param>
        /// <returns></returns>
        protected virtual async Task ImportAfter(List<T> p_list)
        {

        }








        public class DecimalTrimConverter : JsonConverter<decimal>
        {
            public override decimal Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
            {
                return reader.GetDecimal();
            }

            public override void Write(Utf8JsonWriter writer, decimal value, JsonSerializerOptions options)
            {
                // 关键步骤：使用 TrimTrailingZeros() 去掉末尾的 0
                writer.WriteStringValue(value.ToString("0.########################", CultureInfo.InvariantCulture));
            }
        }
    }
}